1989 Hard Starting When Hot

[vettedoc]

My 1989 has developed a problem starting when the engine is hot. It also has been having a rough idle under this condition. Does anyone have any ideas as to where to start looking to solve this problem?

VetteDoc

 

[ecss]

If those are the original injectors (Multec grey body color) the coil windings are probably breaking down. Resistance of the coils should be around 16 ohms. The injector coils usually short out when hot

 

[MRANT212]

I think I may have the same problem with my 88!!

 

[rad928music]

I had the same problem , i replaced the fuel system Relay ( the one on the firewall on the driverside near the battery and the brake booster.